In French-speaking countries, a hôtel-Dieu was originally a hospital for the poor and needy, run by the Catholic Church. Nowadays these buildings or institutions have either kept their function as a hospital, the one in Paris being the oldest and most renowned, or have been converted into hotels, museums, or general purpose buildings.
Therefore, as a secondary meaning, the term hôtel-Dieu can also refer to the building itself, even if it no longer houses a hospital.
Examples include:
Wikipedia https://en.wikipedia.org/wiki/Hôtel-Dieu
Address 3 Rue du Capitaine Vic, Louhans 71500, France
Coordinates 46°37'42.794" N 5°13'31.085" E
